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imgbase64
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Go Library for base64 encoding an image
Download README (.md)
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README.md
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imgbase64
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# imgbase64 [](https://drone.io/github.com/polds/imgbase64/latest) Convert an image to its base64 equivalent. [API Documentation](http://godoc.org/github.com/polds/imgbase64) on go.pkgdoc.org. ## [Features](https://github.com/polds/imgbase64#features) * Fetch an image from an external server and convert to base64 * Use an image on your local machine to convert to base64 * Share a `bytes.Buffer` to the package to detect the mime type and convert the image to base64 * Ability to set a failover image if desired image throws an error or does not exist. * Automatically converts urls with " " to %20. **Note:** If your target domain uses +, _, etc. for space indicators it is your responsibility to modify the url accordingly. * Correctly sets the base64 encoding type to the media type of the image. Example: `data:image/jpeg;base64` * Returned image is ready to be used ## [Installation](https://github.com/polds/imgbase64#installation) ``` go get github.com/polds/imgbase64 ``` ## [Usage](https://github.com/polds/imgbase64#usage) ```golang imgbase64.SetDefaultImage("http://yourdomain.com/defaultimage.png") // Optional - If FromRemote fails it will return " " // Fetch the image from a remote server img := imgbase64.FromRemote("http://somedomain.com/animage.jpg") // Use an image local to machine img := imgbase64.FromLocal("test.png") // Pass an image buffer to package img := imgbase64.FromBuffer(b) ``` ## [Notes](https://github.com/polds/imgbase64#notes) * Please make sure your Default Image is a working image url. If your Default Image fails to load the package will `panic()`. This was deliberate. * `FromLocal` has several instances where it might `panic()`, these are deliberate. ## [Todo](https://github.com/polds/imgbase64#todo) * Better error detection. Websites with custom 404 pages will sometimes "succeed" as being images and the package will base64 the html content of that page. * ~~Ability to use local images to convert to base64~~ * Cache the Default Image only once during the lifetime of the application. Presently every failed image is repulled. * Deprecate `NewImage` * Allow use of DefaultImage with `FromBuffer` and `FromLocal` ## [Change Log](https://github.com/polds/imgbase64#change-log) ##### October 24, 2013 * ADD: FromLocal - Allows you to base64 encode local images * ADD: FromBuffer - Allows you to base64 encode from a `byte.Buffer` * CHANGE: Rename function `NewImage` to `FromRemote`, please update accordingly. Will remove `NewImage` in future commits. * ADD: Examples This is my first package in Go. Suggestions or comments please tweet [@Peter_Olds](https://twitter.com/Peter_Olds)
